Since the templates are already cut out AND affixed to the stock … I COULD run two passes with my benchtop mortiser, using a 3/8” hollow-chisel mortising bit, BEFORE cutting the tenons out of the board. In other words, just punch eight holes IN the board, and then cut out the tenons….

table saw + dado blade, cut almost to full height but leave a 1/16 – clean if off with a chisel to get a nice crisp and even line. FYI – you only need the visible line to be clean and even, the inside of the notch can be rough.

Well, heck, if it’s a false tenon, why cut the notch at all? Why not just cut the middle third (or thereabouts) out of each wedge, glue the upper and lower thirds to the top and bottom of the false tenon, and glue the whole assembly onto the side of the tower?

-- "A man may conduct himself well in both adversity and good fortune, but if you want to test his character, give him power." - Abraham Lincoln

well here is a real big monkey in the works….why not go back and make it all real ..have real mortise and tenon’s…oooppss… i forgot…a pattern…well the other way , and this is more of getting really close to the wood here…but…sprinkle some cinnamon and sugar on there and notch it out with those two front teeth…:){ i think the taste of pine would be about as American as one could get…now i have heard that a certain person likes to mix there cereal’s , so you have the pine…why not make the wedges out of some brilliant hardwood…like mahogany..have that really cool look…....well ive scattered enough debris around here ..i guess i will wander back into my grizz cave..and leave this work to the pro’s…....[’’’’‘]

however i do like what jorgeG said and do it with a saw and chisel..i really do love to cut wood with a nice sharp hand saw…get ya a board and do some practice…and here is a question…do we all own hand saw’s…..and how often do we use them…a fun skill to learn….grizz